正确答案: A

the medicine could cause some people to feel nervous

题目：We can infer by this label that ______.

解析：解析：B和C选项的内容与原文不符，属于错误信息；D选项内容也不正确，这种药为tablet意思为“药片”，本身并不是液体。A选项的内容可以由短文的最后一个句子“Reduce dosage if nervousness，restlessness，or sleeplessness occurs.”所确认。

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举一反三的答案和解析：

[单选题]According to the second paragraph, the 50 to 60 booking phone calls are from those who ______.

believed that Beijing would be the winner

解析：解析：本题的依据句是“...，the hotel had already received 50 to 60 such phone calls from would-be game-goers gambling on the result.” gambling on the result在这里的意思是“算定了北京会赢”，所以他们提前预定宾馆房间。其他选项内容属于错误信息或无关信息。

[单选题]Tom: You are playing guitar well. Can you read music? Charles: No, I don't. I just listen to songs on the radio and then play them until they sound right. Tom: ______ Charles: No, really.

You're kidding

解析：解析：Tom对Charles不识乐谱也能弹得一手好吉他感到难以置信，这种情况下一般说 You're kidding或You're joking，意思是：“你在开玩笑吧!”或“这不是真的!”。其他几个选项分别表示“撒谎”、“吹嘘”、“欺骗”，都不恰当。

[单选题]Connie: Are you doing pottery? It looks like fun! Frank: ______ ? Connie: Boy, would I? Thanks.

Would you like to try it

解析：解析：从Connie的惊喜反应到致谢，可以推断Frank可能给她机会试一试，其他选项与 Connie的反应不相符。